A church of bones, decorated with 40,000 human skeletons.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

A walk through the historic city center, under the streets of Seattle.

A museum dedicated to the history and exploration of both popular music and science fiction.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A wall of chewing gum moonlights as collective art.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

A 20-meter (65-foot) robot towers over Tokyo Bay.

Famously misunderstood wonder of the ancient world

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

The Buddhist temples of Yamadera, built into a mountain side, feature a viewing deck with sweeping views.

A Korean village where times stands still.

Where commuters walk through remnants of an ancient Greek necropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.